[Lahabrea's natural tendency towards emotional stoicism probably does not help, in the case. On the other hand, he seems perfectly willing to tolerate this particular line of questioning, which surely has to count for something.]

We may. But I have no objections to this.

[Even if it's just coffee, that is still not anything that he would consider to be a great hardship, for the sake of conversation.]

There is no singular unifying term, as there would be in the system you have mention. Fulms and yalms would be the most common unit of measurement, in most cases.